Home / 130,655.52-180,304.64-74,066.90

Finding the Fourth Proportional to 130,655.52, 180,304.64 and 74,066.90

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Solution

The fourth proportional to 130,655.52, 180,304.64 and 74,066.90 is: 102,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,655.52 : 180,304.64 = 74,066.90 : x
  2. Step 2: Convert to fraction form
    130,655.52/180,304.64 = 74,066.90/x
  3. Step 3: Cross multiply
    130,655.52x = 180,304.64 × 74,066.90
  4. Step 4: Simplify right side
    130,655.52x = 13,354,605,740.42
  5. Step 5: Solve for x
    x = 13,354,605,740.42/130,655.52
  6. Step 6: Final answer
    x = 102,212.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.